Apparatus for applying adhesives.



PAI'ENTED JAN. 29, 1907.

' J. WEST. APPARATUS FOR APPLYING ADHESIVES.

APPLICATION FILED AUG.12.1904.

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No. 842,283. PATENTED JAN. 29, 1907.

J. WEST. I APPARATUS 170R APPLYING ADHESIVES.

APPLiOATION IILED AUG. 12, 1904.

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TINTTED STATES PATENT FFTGE.

JAMES WEST, OF BROOKLYN, NEW YORK, ASSIGNOR, BY MESNE ASSIGN- MENTS, TOUNITED STATES ENVELOPE COMPANY, OF SPRINGFIELD, MASSACHUSETTS, ACORPORATION OF MAINE.

APPARATUS FOR APPLYING ADHESIV ES.

Specification of Letters Patent.

Patented Jan. 29, 1907.

Application filed August 12, 1904. Serial No. 220,524.

To all whom, it may concern:

Be it known that I, JAMES VVEsT, of Brooklyn, in the county of Kings,and in the State of New York, have invented a certain new and usefulImprovement in Apparatus for Applying Adhesives; and I do hereby declarethat the following is a full, clear, and 6X- act description thereof,reference being had to the accompanying drawings, in which- Figures 1and 2 are respectively a view of a blank and of a completed envelop madefrom such blank, towhich blank my apparatus is adapted to applyadhesive. Fig. 3 is a side elevation of an adhesive-applying apparatusembodying my invention. Fig. 4 is a plan view of the apparatusillustrated in Fig. 3. Fig. 5 is a transverse sectional view taken onthe line at a: of Fig. 3, and Figs. 6 and 7 are respectively alongitudinal sectional view and an end view of the adhesive-applyingroller.

The object of my invention has been to provide an apparatus for applyingadhesive, which apparatus shall have, among others, the advantages ofbeing simple, efficient, easily adjusted to apply adhesive to preciselythe depth desired, and easily cleaned without disturbing theadjustments; and to such ends my invention consists in theadhesiveapplying apparatus hereinafter specified.

As an illustration of my invention I have chosen an apparatus which isadapted to form part of a machine for making envelops from a strip ofpaper as it travels through the machine.

The envelop, as illustrated in Figs. 1 and 2, may consist of a blank inthe form of a rectangular body A, having top and bottom flaps a and a,respectively, each of which is provided with a strip of adhesive a and arespectively. The body A also has end flaps a' and a respectively, oneof which, the under one a, is provided with a strip of adhesive (1. Theblank, as illustrated in Fig. 2, is made into an envelop by securing thegummed end flap a to the opposite end flap a and by securing the bottomflap 0/ upon both end flaps. The envelop-blanks pass in successionthrough the adhesive-applying mechanism which forms the subjectmatter ofthe present application, and such action is conveniently effected byhaving the adjacent end flaps of successive blanks attached to eachother, as by forming the .blanks out of a continuous strip of paper.

The cutting of the end edges of the top and bottom flaps and of the topand bottom edges of the end flaps may be done either before or after thestrip passes through the adhesive-applying apparatus.

The frame of my apparatus, so far as I have illustrated it, consists ofuprights B,

which may comprise part of the frame of the said envelop-machine. Ashaft O is journaled in the arms B, and the adhesive-applying devicesare mounted on such shaft. As i such devices in the use selected areintended to apply the adhesive to a traveling strip of paper or othermaterial, they are preferably,

although not necessarily, made circular 1n cross-section. As I desire toapply the adhesive in a cross-stripe and longitudinal edge stripes onthe strip, I provide for such purpose disks D, between which is mounteda cylinder E. The portions of the peripheries of the disks from which itis desired to have adhesive taken up are higher or of greater radiusthan those portions which it is not desired. to so use. Theadhesive-applying portion of the cylinder E, I prefer to form as atype-bar F, which is secured to the cylinder, as by dovetailing. Theface of the type-bar is flush with that of the adhesive-applyingsurfaces of the disks D.

Glue or other adhesive is supplied to the disks D and to the type-bar Fby such means as a roller G, the latter being mounted on a shaft inbearings upon a bar I-I, upon which latter is also mounted a preferablyrectangular glue-p an I. The shaft of the glue-applying roller is drivenin any desired manner. The bar H is received in guides formed in arms h,that are secured to the frame of the machine. Springs h, that areconnected to the frame and to the bar H, tend to draw the glue-pantoward the glue-applying devices, the movement in such .directionbeinglimited by screws K,that are threaded in said arms and against which thebar H abuts. Ascraperbar L rests upon the upper edges of the gluepan,forward of the glue-transferring roller L, and such bar is held down upon the said edges by leaf-springs M, that are pivoted upon lugs formedon the glue-p an. The said springs are bent upward at an angle to thehorizontal, so that they tend to force the bar away from theglue-transferring roller. Thumb-screws N regulate the distance at whichthe scraperbar stands away from the glue-transferring roller under theaction of the said springs. The scraper-bar can be readily removed forcleaning or other purposes by swinging the springs from over the saidbar and lifting the bar from behind the screws N. The bar can beinstantly replaced in adjusted position, since it is not necessary toturn the screws N in order to remove it. The glue-pan and all itsattached parts can also be readily removed by disengaging the springs hfrom the bar H, and as this can be done without turns ing the screws Kthe gluean can be quickly replaced to operative an adjusted position bysimply placing the bar H upon its guides and reengaging the springs h.

It will be observed that as all the moving parts of my glue-applyingapparatus have purely rotary motions the apparatus can be run at a highrate of speed. In practice I have found my apparatus highly efiicientand capable of being easily adjusted and cleaned, the cleaning beingaccomplished without disturbing the accuracy of the adjustments.

Having thus described my invention, what I claim is 1. In an ap aratusof the class described, means for app ying adhesive material, aremovable pan, a roller in said pan adapted to supply adhesive materialto said applying means, stops against which said pan is adapted to restto determine the distance of the roller from the said applying means,and springs for holding said pan against said stops.

2. In an apparatus of the class described, means for applying adhesivematerial, a removable pan, a roller in said pan adapted to supplyadhesive material to said applying means, adjustable stops against whichsaid pan is adapted to rest to determine the distance of the roller fromthe said applying means, and springs for holding said pan against saidstops.

3. In an apparatus of the class described, the combination of glue-aplying rollers, a glue-pan, a glue-transfer ro ler, a support for saidroller and said pan, guides on the frame upon which said support isadapted to rest,

screws to engage said support and adjust said transfer-roll withreference to the glueapplying rollers, and springs engaging a fixed partand said support and pressing the latter toward said screws.

4. In an apparatus of the class described, the combination with aglue-pan, a transferroll mounted therein and a scraper-bar applied tosaid transfer-roll, of springs pivoted at one end to allow them to berocked to release the seraper-bar and having their free ends applied tosaid scraper to move it away from said transfer-roll.

5. In an apparatus of the class described, the combination with aglue-pan, a transferroll mounted therein, of a scraper-bar having itsends supported on said glue-pan and capable of sliding thereon, adjusting-screws bearing against said scraper-bar and springs applied tosaid scraper-bar with their line of pressure forming an oblique an lewith the top of said glue-pan and also with the axes of said ad jListing-screws, whereby said scraper-b ar is pressed by said springsagainst the ends of said screws and the top of said glue-pan.

6. In an apparatus of the class described, the combination with aglue-pan and a transfer-roll mounted therein, of a scraper-bar havingits ends supported on said glue-pan and capable of sliding thereon,screws held by said glue-pan and bearing against said scraper-bar toadjust its positionrelatively to said transfer-roll, and springs bearingon said scraper-bar and arranged to crowd it away from saidtransfer-roll and toward the supporting-surface of said glue-pan.

7. In an apparatus of the class described, the combination of a glue-panand a transfer-roll mounted therein, of a scraper-bar resting on theupper edges of said glue-pan, springs with their free ends applied tosaid scraper-bar to press it toward the glue-pan, said springs beingpivoted at their opposite ends to enable them to be rocked in order torelease the scraper-bar.

In testimony that I claim have hereunto set my hand.

JAMES WEST.

the foregoing I Witnesses:

WM. 0. FULLER, E. B. MURRAY.

